Question 11 3 pts The purchase of high quality direct materials at a higher price than standard might affect which of the following variances? materials price variance materials quantity variance labor price variance labor price variance, materiale price variance and the materials quantity variance materials price variance, materials quantity variance and the labor efficiency variance 3 pts D Question 12 ABC Corporation has sales of $1,000,000, gross margin of $550,000, net operating income of $150,000, average total operating assets of $1,500,000, and current liabilities of $100,000. What is ABC's ROI return on investment)? 151 100 456 10.710